TMZ reported Monday night the Dangerous Woman World Tour has now been suspended. Grande will not perform Thursday in London and has decided for now to put the entire European tour on hold. After her England shows, she was set to perform in Belgium, Poland, Germany and Switzerland.

Britain is on its second-highest alert level of “severe” meaning an attack by militants is considered highly likely.

Major Terrorist Attacks in 2016 (Photos)

Terrorist attacks in Brussels, Orlando, and Nice have made the biggest headlines around the globe, but there have been more than 100 more terrorist attacks this year. These are some of the deadliest ones that have happened so far. Be advised: This gallery contains violent imagery.

January 3 -- ISIS suicide bombers attack Camp Speicher, a former U.S. base now used by the Iraqi Air Force, killing 15.

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January 7 -- A car bomb at a Libyan police camp in the town of Zilten kills 60 people and wounds 200 more.

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January 11 -- Bombs in three cities in Iraq, including Baghdad, kill over 130 people.

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January 16 -- ISIS forces attack the Syrian town of Deir ez-Zor, killing Syrian army members as well as women and children. Death toll estimates range between 130 and 300 people.

February 17; March 13 -- 67 people are killed in two car bombings in Ankara, Turkey that occur within a month of each other.

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March 22 -- Three suicide bombers armed with nail bombs performed coordinated attacks in Brussels, Belgium. Thirty-two people are killed, with the nail bombs wounding 340 more.

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March 27 -- Seventy-two people, including 29 children, are killed in a suicide bombing at the largest public park in Lahore, Pakistan.

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June 12 -- A gunman opens fire on a nightclub popular with the LGBT community in Orlando, killing 49 and wounding 53 before being shot down by law enforcement officials. The attack is the deadliest in the United States since 9/11.

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June 28 -- A trio of suicide bombings at an airport in Istanbul kill 45 and injure 200 more. No one has claimed responsibility for the attack.

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July 3 -- Several bombings in Baghdad kill over 300 and wound 225. The attacks are the deadliest in Iraq since 2007.

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July 7 -- A sniper kills five police officers who are escorting a protest against police brutality in Dallas. The shooting came in the same week that two African-American men, Alton Sterling and Philando Castile were killed during encounters with police officers.

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July 14: At least 77 people are killed in Nice, France, after a truck drives through a crowd on Bastille Day.

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Major attacks in 2016 have taken place in Brussels, Nice, Syria, and Orlando

Terrorist attacks in Brussels, Orlando, and Nice have made the biggest headlines around the globe, but there have been more than 100 more terrorist attacks this year. These are some of the deadliest ones that have happened so far. Be advised: This gallery contains violent imagery.